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任意倾斜平界面三维射线追踪,是地震勘探工作的正问题。它根据几何地震学的原理,按射线追踪的办法,对多层倾斜平界面作数学推导,可得出一套递推公式。它可求得射线所经过的路径,射线通过各界面的位置,波传播的时间,并从中求得平均速度、均方速度,以及地震子波经界面反射、透射和折射后振幅的变化。对导出的公式,经计算机实现射线追踪,并通过模仿野外地震勘探得出理论记录。该公式的导出,对开展三维地震勘探和地震勘探的深入研究具有一定的意义。
Any oblique plane interface 3D ray tracing is a positive issue for seismic exploration. It based on the principle of geometric seismology, according to the ray tracing approach, mathematical derivation of multi-layer inclined plane, can be derived a set of recurrence formula. It can obtain the path through which the ray passes, where the ray passes through the interface, and the wave propagation time. From this, the average velocity, mean square velocity, and the amplitude of the seismic wavelet after reflection, transmission and refraction through the interface are obtained. The derived formulas are ray traced by computer and theoretical records are obtained by imitating field seismic exploration. The derivation of this formula is of great significance to the further research on 3D seismic exploration and seismic exploration.